Chuck Metals, located in Pulau Ujong, Singapore, is a reliable manufacturer and supplier of top-notch stainless steel products, including Stainless Steel 347H Hex Bars. Known for its dedication to quality, precision, and on-time delivery, Chuck Metals serves a variety of industries with high-performance steel solutions. The 347H Hex Bar they provide is specifically engineered to endure tough environments, especially those with high temperatures and corrosive conditions. By strictly following global standards and maintaining a customer-centric approach, Chuck Metals has established itself as a go-to partner for stainless steel hex bar needs in Singapore’s industrial and engineering sectors.
Stainless Steel 347H Hex Bar is a high carbon variant of alloy 347, stabilized with columbium (niobium) and mainly made up of iron, chromium (17–20%), nickel (9–13%), and carbon (0.04–0.10%). It also includes trace amounts of manganese, silicon, and phosphorus. This unique composition enhances creep strength and provides excellent resistance to intergranular corrosion, particularly at elevated temperatures. In terms of mechanical properties, 347H typically boasts a tensile strength of 75 ksi (515 MPa), yield strength of 30 ksi (205 MPa), and an elongation of about 40%. This alloy is particularly well-suited for high-temperature applications, maintaining its structural integrity and performance even under continuous thermal stress.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A276, A479, ASTM A493
Length : Random, Fix & Cut Length
Size : 20MM to 150MM
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 347h | 0.08 max. | 17.0 – 19.0 | 2.00 max. | 9.0-13.0 | 0.045 max. | 0.03 max. | 0.75 max |
| Element | Density | Melting Range,℃ | Tensile Strength | Yield Strength | Elongation | Hardness (Brinell) |
| SS 347h | 7.96 | 1450 ℃ | 515 | 205 | 40 | 201 |
| HEXAGONS | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.55 | 1.79 |
| 18 | 0.69 | 2.27 |
| 20 | 0.85 | 2.80 |
| 22 | 1.03 | 3.39 |
| 25 | 1.33 | 4.38 |
| 28 | 1.67 | 5.49 |
| 30 | 1.92 | 6.30 |
| 32 | 2.19 | 7.17 |
| 36 | 2.77 | 9.07 |
| 38 | 3.08 | 10.11 |
| 40 | 3.41 | 11.20 |
| 45 | 4.32 | 14.18 |
| 50 | 5.34 | 17.50 |
| 56 | – | – |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
SS 347H stainless steel contains high carbon content (0.04–0.10%), along with chromium (17–19%) and nickel (9–12%), which enhance its resistance to high temperatures and intergranular corrosion. Its stabilizing addition of tantalum or niobium prevents carbide precipitation, making it ideal for high-stress applications like hexagonal bars.
The high carbon content in SS 347H enhances its high-temperature strength and resistance to creep, making it suitable for extreme heat environments. Unlike lower-carbon steels, it stabilizes its microstructure, preventing carbide precipitation and improving oxidation resistance, which is crucial for high-temperature applications compared to other stainless steels like 304 or 316.
SS 347H Hex Bar is commonly used in the aerospace, chemical processing, and power generation industries. It is preferred for its excellent high-temperature resistance, resistance to intergranular corrosion, and stability in harsh environments. Its ability to withstand extreme temperatures and prevent carbide precipitation makes it ideal for critical applications.
Stainless Steel 347H Hex Bar finds its place in high-temperature and high-stress applications across a range of industries. Its outstanding resistance to oxidation and corrosion, paired with improved creep strength, makes it perfect for heat exchangers, boiler tubes, pressure vessels, and exhaust manifolds. Additionally, it’s widely utilized in the aerospace, chemical processing, petroleum refining, and power generation sectors. The hexagonal shape not only enhances grip but also simplifies machining in mechanical applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chuck Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Singapore, Singapore
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